Refuse truck with load packing means



May 28, 1957 w. o. WEBER REFUSE TRUCK WITH LOAD PACKING MEANS Filed Oct.5, 1954 May 28, 1957 w. o. WEBER 2,793,769

REFUSE TRUCK WITH LOAD PACKING MEANS Filed oct. 5, 1954 2 sheets-sheet 2INVENToR. .zZ/MW aff United States Patent REFUSE TRUCK WITH LOAD PACKINGMEANS Walter Otto Weber, Buenos Aires, Argentina Application October 5,1954, Serial No. 460,432

Claims priority, application Germany November 6, 1953 4 Claims. (Cl.214-82) This invention relates to refuse trucks and ,more particularly,to refuse trucks incorporating load packing means.

Although there have been various proposals, prior to the time of theinstant invention, for a refuse truck incorporating a load packingmeans, these prior art devices at best merely provided for the gradualforward displacement of the entire mass of refuse contained in the truckso that more refuse could be laccommodated in the rear of the vehicle.Although the forward displacement of the mass was effected by means .ofan ad vancing wall within vthe rear compartment of the refuse truck, theprior art .devices Were such that, in addition to being compelled tomove the entire mass of .refuse `on each occasion, they were alsoincapable of developing `an elfective pressure to accomplish the job.Additionally, in the prior art devices, no loading could .take placewhile the refuse already in the truck was being pushed forwards orcompressed,

Accordingly, it is one of the primary objects of the present inventionto provide a refuse truck having a compression system which allows Vforthe accommodation of unusually large quantities of refuse.

It is another important object of the .present invention to provide arefuse truck having a garbagecGmpression system wherein the loading ofthe. garbage is ;not interrupted during the compression thereof.

It is still a further object of the present inventionto provide a refusetruck having load packing ,means wherein only refuse located at the rearend of the storage compartment is forwardly displaced when it is desiredto clear the rear of the truck for more refuse.

Yet another object of the present .invention is to provide a refusevehicle having load packing means wherein loading of any nature can beaccommodated in an Aetlicient and practical manner.

Another object of the present invention vis to lprovide a refuse vehiclehaving load packing means wherein the operators do not come intophysical contact with the refuse, and, additionally, wherein the refuseand its as,- sociated dust and particles, etc. is .confiend to the:refuse compartment of the truck and will not escape to the'surroundingatmosphere.

With the above objects in view, the present invention mainly consists ofa garbage collecting vehicle for vthe collection of house andstreetrefuse comprising a tipping storage compartment closed on .itsupperpart 'by a wall provided with a lower rear part which supports ahy-v draulic pressure device `for displacing garbage Yfrom the rear partinto the storage chamber and means to 4move a swinging door disposedabove the Arear aperture of a garbage depositing chamber which extendsunderneath Patented May 28, 1957 the bottom lof the storage compartment,the swinging door being adapted to be placed in a position representingthe extension of the bottom yof the tipping storage compartment, thehydraulic pressure device being provided with telescopic piston meansbearing a plate for forcing the collected garbage on said swinging doortowards the transversal front wall.

The invention will be best understood from the following description ofspecic embodiments when read in conjunction with the accompanyingdrawings wherein:

Fig. 1 is a side elevation of one embodiment of the device of thepresent invention;

Fig. 2 is a rear elevation of the device of Fig 1;

Fig. 3 is a side elevation of another embodiment of the presentinvention which provides for the collection of ashes land other powderymaterials;

Fig. 4 is a rear elevational view of the device of Fig. 2;

Fig. 5 is an enlarged fragmentary detail, partly in section, of theswinging door assembly shown in Fig. l; and

Fig. '6 is an Venlarged fragmentary detail, partly in section, of theswinging door assembly shown in Fig. 3.

Fig. 7 is a sectional view o'f hydraulic piston 10.

Referring to the drawings and more particularly to Fig. l thereofwherein a refuse truck is shown incorporating the device of the instantinvention. A refuse depositing chamber 2 mounted at'the `rear Aofstorage com partrnent 17 and depending from the bottom wall thereof isprovided to initially receive the :refuse mass which `tlows duringoperation in the direction of the arrow marked 1. An opening is formedin the bottom wall of compartment 17 adjacent the forwardmost part ofchamber v2 so that the two chambers are in communication with oneanother. A door 7 forms the rear wall of depositing chamber 2 :and is in-operative interconnection with hydraulic pressure piston 3 mounted inthe rear of the vehicle above depositing chamber 2. Rack Ior toothed bar4 is'movably interconnected with piston?, and meshes with ,gear 5 ytocause door 7 to swing forwardly so as to pass through depositingVchamber 2 or swing rearwardly of the said chamber. The telescopichydraulic piston 10 mounted rat the rear of storage compartment I7 `isoperatively interconnected with movable plate 11 so as to cause theplate 11 to yadvance within storage compartment 17.

When depositing chamber 2 is loaded with refuse hydraulic pressurepiston 3 is actuated, causing toothed bar 4 to mesh with gear 5, therebysetting swinging door 7 into movement in the kdirection of the arrow 8.It is in this fashion that garbage is introduced into storagecompartment 17.

At this time, by means-of a telescopic hydraulic piston 10, the plate 11is caused to advance, moving the refuse in .the direction of the arrow1.2.

The swinging `door 7, which in `position 12 serves as part of the bottomwall Iof the storage compartment 17, returns to its original position 14after the plate 11 passes location 16 and in this way, the depositingchamber 2 is emptied and the refuse moved towards the front of storage,compartment117 while the swinging door 7 moves from the positiondesignated at 13 in Fig. 1.

While the depositing chamber 2 `is being filled, the plate 11 moves inthe direction of the arrow 12, pressing the garbage inside vthe storagecompartment at 17. Shortly lbefore the depositing chamber 2 is lled upto a predetermined level, the plate 11, in the meantime having finished'its function of compressing the garbage,

returns quickly into its original position and the cycle Y of movementof the swinging door 7 and the plate 11 is repeated, as described above.The wall, i. e. the inclined bottom 18 in front of the storagecompartment 17, contributes to displacing the garbage during compressionby causing the garbage to move in the direction of the roof of thestorage compartment, in this way causing the storage compartment to betotally filled.

In case it is necessary to shovel thergarbage from the street, in orderto carry out this task without the necessity of lifting the shovel notmore than a few centimeters from the ground, the swinging door 7 isdisplaced by means of the mechanism as mentioned above and sustained inits position 19 so that the depositing chamber 2 in the rear part of thevehicle remains completely open to receive the shovel loads of refuse.Gnce the storage chamber 2 being filled up to a predetermined level, thecycle of movement of the swinging door 7 and of the plate 1l, asdescribed above, is repeated, only with the difference that the initialposition of the swinging door 7 is in 19 instead of in 14. Thus, thisvehicle perfectly designed to receive the contents of garbage cans,

may also give practical results when shoveling garbage t from theground, due to the fact that only a few centimeters of lifting distanceis required.

In order to be able to introduce the garbage directly from the groundinto the depositing chamber, there is disposed a lowerable bottom flap38, which is hingedly connected to the side walls of the depositingchamber.

As described above, the movement of the swinging door 7 as well as thatof the plate 11 is carried out by means of the piston 3 and thetelescopic pist-on by means of a pressure liquid. However, mechanicalelements such as, for example, a telescopic wheel spindle and gearmovement operated from the axis of the .motor of the vehicle or by humanpower if the vehicle is a horse car, is also applicable. l

The telescopic piston 10 is most conveniently put into operation bymeans of a pressure liquid moved by a pump which provides for theautomatic adjustment of the pressure and volume of the liquid inaccordance with the resistance-.which the plate 11 has to overcome, sothat the latter is moved quickly when the resistance is small and movesslowly in the moments `of maximum compression. All these operations arecarried out with the same absorption of energy from the pump for thepressure liquid, conveniently put into action from the axis of the motorof the vehicle itself.

The vehicle is unloaded from one of its sides, as shown in Fig. 2, byopening the side door 20 and laterally pivoting the storage compartmenton the chassis around point 21, putting into use the telescopichydraulic piston 22. Additionally, on the roof of the storage chamberone or two compartments may be provided, as marked (23), in order toaccommodate large objects which might have been left together with thegarbage, or also in order to be able, if necessary, to separately loadcertain objects which have been separated from the garbage. To make theloading easy, a ladder 24 is attached, and for the unloading one or more(according to the quantity of compartments) side doors are provided.

In this way exists the advantage of unloading one or yall of thesecompartments 23 in one place, the general load of the vehicle beingunloaded somewhere else.

The vehicle for collecting refuse primarily composed of combustion ashesis represented in Fig. 3 and in Fig. 4.

-The vehicle is essentially identical with the one shown in Figs. l and2 and described before, the movement of the swinging door 7, and plate11 being the samealong withv all other observations related to thecompartments for large `objects and the way of unloading them. Thedifference lies in the hermetic closing off of the depositing chamber soas to prevent the spreading of dust during unloading. Accordingly, thechamber situated 4 above the depositing chamber is closed by means ofwalls 26, 27 and 28, and the depositing chamber itself is closed off byan inclined wall 29 which forms a uniform part with the swinging door 7.

For the operation of unloading the garbage cans there is provided acertain quantity of wings 30 (in Fig. 4 3 of them are visible), movablerotatively with articulation 31 where the wall 29 and the swinging door7 join, adapted to hermetically connect to the garbage can 32 which inthis moment is set down upon some of the supports 33 fixed in theswinging door 7.

Once `a garbage can is connected to one of the wings 30, the wing isrevolved `around articulation point 31, until it is folded on the wall,the can in such a moment being situated in the position marked. 34. Atthis stage of the process, by means of an outside mechanism, the caps 35of the walls 29 and 36 of the wing 39 are opened, the garbage evaouatingin the direction of the arrow 37 into the primary recipient.

Before disconnecting the garbage can, the cap 35 of the wall 29 isclosed, and the wing com-es back to its horizontal position in order toconnect another garbage can. The hydraulic pressure piston 3, thetelescopic hydraulic piston 10 and the telescopic hydraulic piston 22are operatively controlled by selectively operating means as shown inFigs. l and 3.

In this way the `escape of any dust resulting from unloading of thegarbage cans is positively eliminated. Once the depositing chamber isfilled, the contents of it is displaced towards the storage compartmentof garbage in a way identical to the one described above.

Having described and determined particularly thc nature of the presentinvention and in what manner the same is to be performed I declare thatwhat I claim is:

1. A garbage collecting vehicle `for the collection of house and streetrefuse comprising a tipping storage compartment closed on its upperpartby a wall provided with a lower rear part which supports a hydraulicpressure device for displacing garbage from the rear part into thestorage chamber and means to move a swinging door disposed above therea-r aperture of a garbage depositing chamber which extends underneaththe bottom of the storage compartment, the swinging door being adaptedto be placed in a position representing the extension of the bottom ofthe' tipping storage compartment, the hydraulic pressure device beingprovided with telescopic piston, means bearing a plate for forcing thecollected garbage on said swinging door toward the transversal berhavin-g an arouated bottom which extends underneath the bottom of thestorage compartment, the upperpart of the storage chamber is closed by awall provided with a lower rear part which supports an obtuse angledswinging door disposed above said depositing chamber, hydraulic meansfor moving said swinging door from the outside of the depositing chamberinto a straight line position with the bottom of the storage chamber, ahydraulic pressure device mounted on said lower rear part and providedwith telescopic pressure means bearing-a plate for forcing the collectedgarbage on said swinging door towards the front wall of the storagecompartment,selectively operating means for said hydraulic means Vandtelescopic pressure means, the obtuse angled swinging door beingprovided on its upper pivoted arm with one or more closable openings andits lower free arm with supporting means for at least one garbagerecipient.

3. A garbage collecting vehicle for the collection of house and streetrefuse according to claim l wherein the garbage depositing chamber isprovided on its lower part with retaining means for an additionaldisplaceable bottom.

4. A garbage collecting vehicle for the collection of 5 6 house andstreet refuse according to claim 1 and includ- 2,103,128 Walter Dec. 21,1937 ing a tipping means which wil-1 laterally tip the storage 2,622,748Feidert 1 Dec. 23, 1952 compartmentin a sidewise manner. 2,649,216Gollnick Aug. 18, 1953 References Cited in the le of this patent 5 514296 GORIITI PATENTS N 3 1939 i ea mtaln f ov. UNITED STATES PATENTS474,041 yItaly Aug. 29, 1951 1,908,899 Kayel May 16, 1933 140,876 sweden111119,16, 1953 2,084,656 Rottee June 22, 1937

